From a favorite blog of mine, Tony Morrill's Fortenia:
Forteania: 19th Century Chupacabras: While thumbing through one of my paranormal books the other night, I came across a familiar story. A group of sheep farmers were upset because something was attacking and killing their livestock. The creature was not, however, eating the sheep. According to witnesses, it was biting their jugulars and, apparently, draining them of blood. If this sounds familiar to you, hold your assumptions for just a second. The above the story comes not from Puerto Rico in 1995, instead Charle Fort relates the account in his book Lo! (which I of course read in The Book of the Damned) written in 1931. Fort tells readers:
In the month of May, 1810, something appeared at Ennerdale, near the border of England and Scotland, and killed sheep, not devouring them, sometimes seven or eight of them in a night, but biting into the jugular vein and sucking the blood. (Fortenia)Fortean (and UFO) events -- just when you think they're isolated, specific to a decade or era or location, you find they are not. As Morrill and other Fortean researchers have long pointed out, these events pop up in Fortean history, upsetting our ideas about why and how such anomalous episodes occur.